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Site Background Information Larry's Auto <br /> '• Page 4 of 8 <br /> • CPT-7 was sampled between 71 feet and 75 feet bsg, between 81 feet and 85 feet bsg, <br />' between 109 feet and 113 feet bsg,between 134 feet and 138 feet bsg,between 159 feet and <br /> 163 feet bsg, and between 180 feet and 184 feet bsg, <br /> • CPT-8 was sampled between 63 feet and 67 feet bsg, between 104 feet and 108 feet bsg, <br />! between 126 feet and 130 feet bsg,between 159 feet and 163 feet bsg,between 178 feet and J/ <br /> 182 feet bsg, and between 189 feet and 193 feet bsg, and <br />' • CPT-9 was sampled between 66 feet and 70 feet bsg, between 113 feet and 117 feet bsg, <br /> between 153 feet and 157 feet bsg,between 180 feet and 184 feet bsg, and between 186 feet <br /> and 190 feet bsg <br /> I <br /> Soil samples were collected from specified depth intervals (zones) based on the acquired CPT <br /> lithologic data indicating favorable conditions for sampling Soil samples were collected from CPT <br /> boring locations at the following intervals <br /> • CPT-7 was sampled between 59 feet and 60 feet bsg, and <br /> • CPT-8 was sampled between 154 feet and 155 feet bsg <br /> Soil descriptions from the computer-generated CPT lrthologic logs were integrated with previous <br /> subsurface soil descriptions and the hydrocarbon impact to ground water and soil was quantified by <br /> laboratory analysis of the ground water and soil samples <br /> Generally, silt, clay, clayey silt, silty clay, sandy silt, silty sand, and sand were encountered from <br /> 5 feet bsg to approximately 100 feet bsg, one soil sample, collected at 60 ft bsg in boring CPT-7, <br /> was described as a greenish-brown coarse sand A distinctive Interval consisting primarily of sand, <br /> silty sand,sandy silt,and gravelly sand,as well as some silty clay,clayey silt,and silt,was identified <br /> at depths between approximately 100 feet and 140 feet bsg From 140 feet bsg to the total depths of <br /> the borings clayey silt, silty clay, silt, cemented sand, sand, silty sand, sandy silt, and gravelly sand <br />' were identified, one soil sample, collected at 155 feet in CPT-8,was described as a dark gray sandy <br /> silt <br /> I <br /> I <br /> • <br /> Advanced GeoEnvironmental,Inc <br />